Do not take this medication if you are also using a nitrate drug for chest pain or heart problems. This includes nitroglycerin (Nitrostat, Nitrolingual, Nitro-Dur, Nitro-Bid, and others), isosorbide dinitrate (Dilatrate-SR, Isordil, Sorbitrate), and isosorbide mononitrate (Imdur, ISMO, Monoket). Nitrates are also found in some recreational drugs such as amyl nitrate or nitrite ("poppers"). Taking Levitra with a nitrate medicine can cause a serious decrease in blood pressure, leading to fainting, stroke, or heart attack.

Before taking this medication, tell your doctor if you are allergic to any drugs, or you have:

heart disease or heart rhythm problems;a recent history (in the past 6 months) of a heart attack, angina (chest pain), or congestive heart failure;a recent history of stroke or blood clots;a personal or family history of "Long QT syndrome";high or low blood pressure;liver disease;kidney disease (or if you are on dialysis);a blood cell disorder such as sickle cell anemia, multiple myeloma, or leukemia;a bleeding disorder such as hemophilia;a stomach ulcer;retinitis pigmentosa (an inherited condition of the eye);a physical deformity of the penis (such as Peyronie's disease);

If you have any of these conditions, you may need a dose adjustment or special tests to safely take Levitra. Always discuss with your doctor before taking any prescription medicine from a website. You should also provide correct medical details if you are buying viagara, Cialis or Levitra from an online prescription medicine company or pharmacy.

friend wrote:I have been using Viagra for a while. Now I want to give Levitra a try as well. Any ideas about who should be careful while using Levitra?

Let me tell you that levitra is stronger than viagra but will not last as long as cialis. Cialis is the medicaiton for those that want to have the felxibilty in sex - i.e. dont have to get laid within an hour syndrome.

Now whether levitra lasts as long as viagra in the body I have no idea about it.